what is the CSA of a hemisphere with diameter 4a?
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Answer:
Step-by-step explanation:
The surface area of a sphere A=4πr2. If you want the surface area of just the curved part of half that, you'd divide the whole thing by 2; A=2π
ardraremesh17:
cud you be more specific?
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Csa of hemisphere = 2× 22/7 × r^2
= 2 × 22/7× 4a^2
= 8× 22/7 × a^2
= 178a^2/7
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